EP4022650A1 - Molten fuel reactors and orifice ring plates for molten fuel reactors - Google Patents
Molten fuel reactors and orifice ring plates for molten fuel reactorsInfo
- Publication number
- EP4022650A1 EP4022650A1 EP20875650.2A EP20875650A EP4022650A1 EP 4022650 A1 EP4022650 A1 EP 4022650A1 EP 20875650 A EP20875650 A EP 20875650A EP 4022650 A1 EP4022650 A1 EP 4022650A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- orifice ring
- ring plate
- reactor
- flow
- reactor core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C1/00—Reactor types
- G21C1/04—Thermal reactors ; Epithermal reactors
- G21C1/06—Heterogeneous reactors, i.e. in which fuel and moderator are separated
- G21C1/22—Heterogeneous reactors, i.e. in which fuel and moderator are separated using liquid or gaseous fuel
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C1/00—Reactor types
- G21C1/04—Thermal reactors ; Epithermal reactors
- G21C1/06—Heterogeneous reactors, i.e. in which fuel and moderator are separated
- G21C1/14—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being substantially not pressurised, e.g. swimming-pool reactor
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C11/00—Shielding structurally associated with the reactor
- G21C11/06—Reflecting shields, i.e. for minimising loss of neutrons
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/24—Promoting flow of the coolant
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C5/00—Moderator or core structure; Selection of materials for use as moderator
- G21C5/14—Moderator or core structure; Selection of materials for use as moderator characterised by shape
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C5/00—Moderator or core structure; Selection of materials for use as moderator
- G21C5/18—Moderator or core structure; Selection of materials for use as moderator characterised by the provision of more than one active zone
- G21C5/22—Moderator or core structure; Selection of materials for use as moderator characterised by the provision of more than one active zone wherein one zone is a superheating zone
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Definitions
- chloride fuel salts containing one or more of UCL, UChF, UCh, UCI2F2, and UCIF3 the application further discloses fuel salts with modified amounts of 37 C1, bromide fuel salts such as UBn or UBr4, thorium chloride fuel salts, and methods and systems for using the fuel salts in a molten fuel reactor.
- Average operating temperatures of chloride salt reactors are anticipated between 300 °C and 800 °C, but could be even higher, e.g., > 1000 °C.
- FIG. 5 is an enlarged partial perspective view of the orifice ring plate shown in FIG. 4.
- FIG. 6 is a fuel salt flow vector plot for the fuel salt flow loop shown in FIG. 4.
- FIG. 11 is a partial perspective view of a fuel salt flow loop of the reactor core system shown in FIG. 10.
- This disclosure describes molten fuel reactors and orifice ring plates for molten fuel reactors.
- the orifice ring plate is disposed within a low power region of a reactor core and proximate inlet channels that channel fuel salt into the reactor core.
- the orifice ring plate is oriented substantially orthogonal to the flow of fuel salt and is configured to balance and distribute the flow of fuel salt that enters into an active core region. By conditioning fuel salt flow within the reactor core, stability of the fuel salt flow is increased, which increases temperature uniformity and performance of the reactor.
- the orifice ring plate is coaxial with the right-circular cylinder shaped reactor core.
- the terms “axial” and “longitudinal” refer to directions and orientations, which extend substantially parallel to a centerline of the reactor core and the orifice ring plate.
- the terms “radial” and “radially” refer to directions and orientations, which extend substantially perpendicular to the centerline of the reactor core and the orifice ring plate.
- the term “circumferential” and “circumferentially” refer to directions and orientations, which extend arcuately about the centerline of the reactor core and the orifice ring plate.
- the size of the reactor core 102 may be selected based on the characteristics and type of the particular fuel salt 104 being used in order to achieve and maintain the fuel in an ongoing state of criticality, during which the heat generated by the ongoing production of neutrons in the fuel causes the temperature of the molten fuel to rise when it is in the reactor core 102.
- the performance of the reactor 100 is improved by providing one or more reflectors 108 around the core 102 to reflect neutrons back into the core.
- the reactor 100 may include an upper reflector 110, a lower reflector 112, and at least one radial side reflector 114. Additionally, the reflectors 108 may shield components positioned radially outward from the core 102.
- the molten fuel salt 104 is circulated in a fuel loop 116 between the reactor core 102 and one or more primary heat exchangers 118 located outside of the core 102. The circulation may be performed using one or more pumps 120.
- the primary heat exchangers 118 transfer heat from the molten fuel salt 104 to a primary coolant 122 that is circulated through a primary coolant loop 124.
- the primary coolant may be another salt, such as NaCl-MgCh. lead, or other liquid metal.
- Other coolants are also possible including Na, NaK, Na mixtures, supercritical CO2, liquid lead, and lead bismuth eutectic.
- the radial side reflector 114 extends between the upper reflector 110 and the lower reflector 112 and is positioned between each primary heat exchanger 118 and the reactor core 102 as shown in FIG. 1.
- the entire reactor core 102 is surrounded by reflectors 108 between which are provided radial channels for a flow of fuel salt 104 into (e.g., inlet channels 130) and out (e.g., outlet channels 132) of the reactor core 102.
- eight side reflectors 114 and primary heat exchangers 118 are circumferentially spaced around the reactor core 102 and about the longitudinal axis 126, with each primary heat exchanger 118 provided with the pump 120 to drive circulation of the fuel salt 104 and generate the fuel loop 116.
- a different number of side reflectors 114 and primary heat exchangers 118 may be used as required or desired.
- the apertures 250, 276 may have different sizes and/or shapes as required or desired.
- the apertures 250, 276 may also have different dimensions (e.g., diameter for a circular apertures) as needed in either the circumferential and/or axial directions of the orifice ring plate 230 so as to provide the desired flow distribution corrections for target conditions of interest.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962953065P | 2019-12-23 | 2019-12-23 | |
US202062981374P | 2020-02-25 | 2020-02-25 | |
PCT/US2020/066599 WO2021133797A1 (en) | 2019-12-23 | 2020-12-22 | Molten fuel reactors and orifice ring plates for molten fuel reactors |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4022650A1 true EP4022650A1 (en) | 2022-07-06 |
Family
ID=75439431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20875650.2A Pending EP4022650A1 (en) | 2019-12-23 | 2020-12-22 | Molten fuel reactors and orifice ring plates for molten fuel reactors |
Country Status (8)
Country | Link |
---|---|
US (1) | US11881320B2 (en) |
EP (1) | EP4022650A1 (en) |
JP (1) | JP2023508951A (en) |
KR (1) | KR20220111270A (en) |
CN (1) | CN114651311A (en) |
AU (1) | AU2020412481A1 (en) |
CA (1) | CA3162414A1 (en) |
WO (1) | WO2021133797A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12012827B1 (en) | 2023-09-11 | 2024-06-18 | Natura Resources LLC | Nuclear reactor integrated oil and gas production systems and methods of operation |
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2020
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CN114651311A (en) | 2022-06-21 |
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US20210272707A1 (en) | 2021-09-02 |
WO2021133797A1 (en) | 2021-07-01 |
KR20220111270A (en) | 2022-08-09 |
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